The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-01-175-7082, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-175-7082 |
| Primary Part Number | 503-4556027 |
| Item Name | Coupling Half,self-Sealing |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Operating Pressure | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Class | 3A ALL ENDS A |
| Connection Style | FLARED ALL ENDS |
| Features Provided | SELF-SEALING |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Thread Series Designator | UNF ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Material | STEEL BODY |
| Seat Angle | 37.0 DEGREES LOCATION NOT OTHERWISE SPECIFIED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 503-4556027 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 5400-S2-4 | Danfoss Power Solutions II, Llc (USA) |
| 2670-57 ITEM 19 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
NSN 4730-01-175-7082 is a Coupling Half,self-Sealing, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-175-7082 has 3 cross-referenced part numbers: 503-4556027 (Huntington Ingalls Inc Div Newport News Shipbuilding), 5400-S2-4 (Danfoss Power Solutions II, Llc), 2670-57 ITEM 19 (Huntington Ingalls Inc Div Newport News Shipbuilding).
There are 12 known substitutes for 4730-01-175-7082: 4730-00-222-9076, 4730-01-175-1135, 4730-01-175-5443 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 503-4556027: Special Features: FOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY; Nominal Thread Size: 0.438 INCHES ALL ENDS IN; Operating Pressure: 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Thread Class: 3A ALL ENDS A. 11 total characteristics are documented in the Federal Logistics Information System.